Home / 120,579.81-166,392.02-66,862.83

Finding the Fourth Proportional to 120,579.81, 166,392.02 and 66,862.83

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Solution

The fourth proportional to 120,579.81, 166,392.02 and 66,862.83 is: 92,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,579.81 : 166,392.02 = 66,862.83 : x
  2. Step 2: Convert to fraction form
    120,579.81/166,392.02 = 66,862.83/x
  3. Step 3: Cross multiply
    120,579.81x = 166,392.02 × 66,862.83
  4. Step 4: Simplify right side
    120,579.81x = 11,125,442,137.74
  5. Step 5: Solve for x
    x = 11,125,442,137.74/120,579.81
  6. Step 6: Final answer
    x = 92,266.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.